Home / 49,118.54-67,791.74-28,980.36

Finding the Fourth Proportional to 49,118.54, 67,791.74 and 28,980.36

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Solution

The fourth proportional to 49,118.54, 67,791.74 and 28,980.36 is: 39,997.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,118.54 : 67,791.74 = 28,980.36 : x
  2. Step 2: Convert to fraction form
    49,118.54/67,791.74 = 28,980.36/x
  3. Step 3: Cross multiply
    49,118.54x = 67,791.74 × 28,980.36
  4. Step 4: Simplify right side
    49,118.54x = 1,964,628,885.32
  5. Step 5: Solve for x
    x = 1,964,628,885.32/49,118.54
  6. Step 6: Final answer
    x = 39,997.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.